Low frequencies under control

The fire classes of the aixFOAM absorbers do not only refer to the material, but always include the products including the mounting options offered by us, such as our STICKY self-adhesive kit.
More information about the fire classes of our sound absorbers is available the relevant aixFOAM knowledge article.
In the production (foaming) of this acoustic material different sized pores (voids) can arise. Voids are typical for the material, do not represent a quality defect and do not affect the acoustic properties of the absorber.
Unlike for sound absorbers in panel form, which are placed over a large area on wall or ceiling surfaces, it does not make sense to specify pure sound absorption degrees for free-standing absorbers, such as our low-frequency absorbers. This would not be meaningful or physically useful.
Therefore, our bass absorbers from RWTH University were tested for their sound absorption effect in extensive measurements in accordance with DIN 52212, taking into account the equivalent absorption surface. The complete measurement log with detailed explanations and all numerical results can be found in the corresponding data sheet if necessary. We will be happy to send this to you on request.
Frequency range |
![]() Edge length 25 cm x 25 cm |
![]() Edge length 46 cm x 46 cm |
|---|---|---|
| Lower limit frequency |
50 Hz | 28 Hz | Maximum absorption effect at |
200 Hz | 100 Hz |

At aixFOAM we make sound insulation for applications in room acoustics and technical acoustics. And because we do this particularly well, we have been doing it for 65 years. Over this time we have been constantly working on the further development of our products and therefore are able to offer you highly effective sound absorbers in a modern design.
Our aixFOAM philosophy: We combine customer-oriented advice with the individual, needs-based production of sound insulation solutions. Or in other words: We help you with free advice to find the ideal sound insulation for your project and start to make your absorbers directly after receiving your order. You then receive your sound insulation directly from the factory – naturally in the best quality.

‘With our bass trap BASSIC you receive an all-rounder against irritating bass frequencies – and at a very good price-performance ratio. The larger the absorber selected, the lower the frequencies that can be absorbed. My tip: Stack several bass absorbers on top of each other to strengthen the effect even more. In this way you achieve a precise bass reproduction, without flatter echoes, drumming or humming. You must also ensure that the absorbers are placed in the corners with the points facing into the room.’
Volker Rings, customer advisor
Do you need help or do you have any questions about the product?
Use our help area with brief answers to the most frequently asked questions from our customers.
Of course we are happy to help you with advice, free of charge.
+49 2403 / 83830 - 22
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